×

10 Things Mechanics Do That We All Hate & 10 Things Drivers Do That Mechanics Hate


10 Things Mechanics Do That We All Hate & 10 Things Drivers Do That Mechanics Hate


The Never-Ending Standoff

Car owners and mechanics have been locked in a love-hate relationship for as long as cars have existed. One side clutches the keys, the other holds the toolbox, and somehow sparks always fly. Ask a driver, and they’ll tell you garages feel like black holes for their hard-earned money. Ask a mechanic, and they’ll swear drivers treat cars like indestructible toys. So, first, here are ten habits mechanics have that drive people crazy.

man holding open-wide car trunkKenny Eliason on Unsplash

1. Inflating Repair Bills With Hidden Fees

When you drop your car off for a small fix, you expect to pay for exactly that repair. Instead, the bill often arrives padded with mysterious “shop supplies” or vague “environmental fees” that were never explained beforehand. 

Kindel MediaKindel Media on Pexels

2. Recommending Unnecessary Part Replacements

Mechanics sometimes insist that perfectly fine parts are worn out, creating unnecessary pressure around safety concerns. Most drivers, not wanting to risk danger, feel cornered into agreeing. That’s how it leaves customers wondering if the advice was actually about safety.

man in black jacket and blue denim jeans riding motorcycleSten Rademaker on Unsplash

3. Taking Days For A Job That Should Take Hours

You drop off your car in the morning expecting to pick it up after lunch, only to be told it’ll take a few more days. What was supposed to be a quick brake pad change somehow becomes a drawn-out ordeal. Without a loaner car to soften the blow, the wait feels even more unbearable. 

Andrea PiacquadioAndrea Piacquadio on Pexels

Advertisement

4. Ignoring Concerns About Strange Noises

Instead of peace of mind, many drivers leave the shop still haunted by the same squeaks and rattles they came in for. Mechanics brush off these complaints with a quick “we couldn’t replicate it.” The result? Problems grow louder and repairs get pricier.

cottonbro studiocottonbro studio on Pexels

5. Returning Cars Dirtier Than They Arrived

Dropping off a car for service should mean picking it up in better shape, yet many drivers discover greasy fingerprints on doors and steering wheels or muddy floor mats trampled by shop shoes. Besides, a messy return signals carelessness.

File:2014 BMW X3 xDrive20d SE Automatic 2.0 (Dirty example).jpgVauxford on Wikimedia

6. Installing Used Parts Without Informing Customers

A repair bill can sting, but discovering later that salvaged parts were fitted while being charged for new ones feels like a real betrayal. Customers find out only after those parts fail long before they are expected. While used components aren’t always unsafe, the lack of transparency creates doubt.

Malte LukMalte Luk on Pexels

7. Upselling Expensive Synthetic Oil Every Time

Mechanics often push the pricier blend even for older cars that don’t benefit from it. That’s when customers feel pressured into spending more than necessary, and the constant upsell makes advice sound profit-driven rather than helpful. 

man refilling motor oil on car engine bayTim Mossholder on Unsplash

8. Charging Full Labor Rates For Quick Fixes

Ten minutes of work gets priced as though it were a full repair, leaving drivers stunned by labor minimums that feel unfair. Without clear explanations, transparency fades, and customers begin to wonder how charges are really calculated.

Chevanon PhotographyChevanon Photography on Pexels

9. Not Calling Back When They Said They Would

Few things test patience like waiting for a call that never comes. Customers sit by the phone for hours or even days, clinging to promised updates that never materialize. Many rearrange schedules around those nonexistent calls, only to be met with silence.

Edmond DantèsEdmond Dantès on Pexels

Advertisement

10. Forgetting To Address Small Parts

Loose bolts, missing caps, or forgotten clips might seem minor in the shop, but they cause big frustrations on the road. Sloppy work like this shakes confidence in more complex repairs. Lastly, drivers end up making unnecessary return visits.

Gustavo FringGustavo Fring on PexelsNow, here are ten things drivers do that make mechanics want to walk away from the garage.

1. Showing Up Late For Scheduled Appointments

Rolling in late for an appointment might seem harmless, but for mechanics, it throws the entire day off balance. Each repair bay is carefully scheduled for a specific car, and when one job arrives late, the domino effect begins. 

Steve JohnsonSteve Johnson on Pexels

2. Demanding “Quick Fixes” 

Most shops are already balancing a full lineup of booked appointments, and dropping in with a major problem throws off the workflow. Mechanics then feel the weight of rushing through a job, even when they know cutting corners can lead to mistakes. 

Artem PodrezArtem Podrez on Pexels

3. Bringing In Cars With Trash-Filled Interiors

Climbing into a car piled with fast-food wrappers, bottles, or layers of pet hair is never a pleasant start for a mechanic. Beyond the discomfort, all that mess can actually hide important problem areas like seat wiring or access points. 

Nataliya VaitkevichNataliya Vaitkevich on Pexels

4. Ignoring Basic Maintenance 

It always starts small—skipped oil changes or fluids left unchecked. Before long, those little oversights grow into expensive breakdowns that could have been prevented. Mechanics often take the heat for poor upkeep, even though preventive care is far safer. 

a man working on a car in a garageJoseph Pillado on Unsplash

5. Watching Mechanics Work Over Their Shoulders

No one wants to feel like they’re being watched at every move, and mechanics are no different. Hovering over their shoulders during repairs creates instant tension, making the job feel less like skilled work and more like a test. 

a man working on a car engine in a garageuma dantara on Unsplash

Advertisement

6. Expecting Free Diagnostics 

It might look effortless when a mechanic plugs in a scanner, but behind that quick check is years of training and pricey equipment. Shops invest heavily in diagnostic tools, so giving away free tests cuts directly into profits. 

File:Man holding Obd2 jack for car software diagnostic.jpgNenad Stojkovic on Wikimedia

7. Haggling Over Prices 

Arguing over repair costs as if a service shop were a flea market rarely goes over well. Posted rates exist for a reason, and most shops don’t operate on wide profit margins to begin with. Instead of focusing on fixing cars, the team gets stuck in drawn-out conversations about discounts.

Gustavo FringGustavo Fring on Pexels

8. Performing DIY Repairs Beforehand 

Nothing gives a mechanic bigger headaches than a “YouTube-certified” repair attempt. Stripped bolts, parts that clearly don’t belong, and creative fixes straight out of a home garage show up fast. Before real work begins, the botched job has to be undone.

A man standing next to a car with its hood openCaique Morais on Unsplash

9. Dropping Off Vehicles With Empty Gas Tanks

Mechanics need fuel to properly test drive and diagnose problems, and an empty tank stalls the whole process. Sometimes, staff even dip into their own supply. Beyond the inconvenience, it feels like a lack of courtesy.

several vehicles parked beside wallAlex Suprun on Unsplash

10. Calling Constantly For Status Updates

Every ring pulls mechanics away from their work, breaking focus and momentum. Updates are usually given once progress is made, so constant calls only create a distraction. Over time, it leaves both mechanics and staff frustrated.

man in white polo shirt wearing blue sunglassesPhilipp Lansing on Unsplash